
Approved by the building authorities as a shear-connector by Z.21.1.-1880.
ETA-23/0475 as a connector for reinforcing existing concrete structures with concrete topping.
Transmission of forces in existing concrete by undercutting technique.
Transmission of forces in the new concrete via shear studs.
The optimized thread enables a fast and easy installation process.
Hole corrugation disc optionally serves to support or tie the rebars.
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General type approval / General technical approval Z-21.1-1799.
General type approval / General technical approval Z-21.8-1880.
European technical assessment ETA 15/0514, single fastening.
European technical assessment ETA 23/0475 as shear-connector.
Application in cracked and non-cracked concrete
of strength classes from C20/25 to C50/60.

Shear-connector under the asphalt surface
Detail